Patent US829233A successfully refreshed from Google Patents.
US829233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder-head for engines.
Assignee: Individual
•
Filing: 1905-06-24
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Granted: 1906-08-21
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Expires: 1925-06-24
Abstract
No abstract record available.
Inventors
- 👤 Alexander Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:00
CPC Classifications
F; F16; F16J; F16J10/00; F16J10/02; F04; F04B; F04B33/00; F04B33/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1909-08-20 | 1910-02-19 | 1910-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-08-20 | 1914-02-19 | 1914-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-08-20 | 1918-02-19 | 1918-08-21 | $7700.00 | Window Closed / Lapsed |